The structure of the extracellular domains of human interleukin 11 α-receptor reveals mechanisms of cytokine engagement

Metcalfe R Aizel K, Zlatic C, Nguyen P, Morton C, Lio D, Cheng H, Dobson R, Parker M, Gooley P, Putoczki T, Griffin M, Journal of Biological Chemistry :jbc.RA119.012351 (2020) DOI

SASDGK2 – Interleukin 11/Interleukin 11 receptor alpha complex

Interleukin-11 receptor subunit alpha
Interleukin 11
MWexperimental 50 kDa
MWexpected 50 kDa
VPorod 84 nm3
log I(s) 9.36×10-3 9.36×10-4 9.36×10-5 9.36×10-6
Interleukin-11 receptor subunit alpha Interleukin 11 small angle scattering data  s, nm-1
ln I(s)
Interleukin-11 receptor subunit alpha Interleukin 11 Guinier plot ln 9.37×10-3 Rg: 3.3 nm 0 (3.3 nm)-2 s2
(sRg)2I(s)/I(0)
Interleukin-11 receptor subunit alpha Interleukin 11 Kratky plot 1.104 0 3 sRg
p(r)
Interleukin-11 receptor subunit alpha Interleukin 11 pair distance distribution function Rg: 3.3 nm 0 Dmax: 10.2 nm

Data validation


Fits and models


log I(s)
 s, nm-1
Interleukin-11 receptor subunit alpha Interleukin 11 OTHER model

log I(s)
 s, nm-1
Interleukin-11 receptor subunit alpha Interleukin 11 DAMMIF model

Synchrotron SAXS data from solutions of the interleukin 11/interleukin 11 receptor alpha complex in 20 mM Tris, 150 mM NaCl, 0.2% sodium azide, pH 8.5 were collected on the SAXS/WAXS beam line at the Australian Synchrotron (Melbourne, Australia) using a Dectris/Pilatus3 S 2M detector at a sample-detector distance of 2.5 m and at a wavelength of λ = 0.1078 nm (I(s) vs s, where s = 4πsinθ/λ, and 2θ is the scattering angle). In-line size-exclusion chromatography (SEC) SAS was employed. The SEC parameters were as follows: A 50.00 μl sample at 2.2 mg/ml was injected at a 0.45 ml/min flow rate onto a GE Superdex 200 Increase 5/150 column at 20°C. Six successive 1 second frames were collected through the SEC elution peak of the sample. The data were normalized to the intensity of the transmitted beam and radially averaged; the scattering of the solvent-blank was subtracted.

Storage temperature = UNKNOWN

Interleukin-11 receptor subunit alpha (IL11RA)
Mol. type   Protein
Organism   Homo sapiens
Olig. state   Monomer
Mon. MW   32.2 kDa
 
UniProt   Q14626 (23-319)
Sequence   FASTA
 
Interleukin 11 (IL11)
Mol. type   Protein
Organism   Homo sapiens
Olig. state   Monomer
Mon. MW   18.2 kDa
 
UniProt   A8K3F7 (32-199)
Sequence   FASTA